Avoid C++17 guaranteed copy elision when testing for non-copyability

llvm-svn: 289033

1 files changed, 2 insertions, 1 deletions

diff --git a/libcxx/test/std/thread/futures/futures.task/futures.task.members/ctor1.fail.cpp b/libcxx/test/std/thread/futures/futures.task/futures.task.members/ctor1.fail.cpp
index 6d7d734bd5e..8882fd1f158 100644
--- a/libcxx/test/std/thread/futures/futures.task/futures.task.members/ctor1.fail.cpp
+++ b/libcxx/test/std/thread/futures/futures.task/futures.task.members/ctor1.fail.cpp
@@ -28,6 +28,7 @@ typedef volatile std::packaged_task<A(int, char)> VPT;
 
 int main()
 {
-    PT p { VPT{} }; // expected-error {{no matching constructor for initialization of 'PT' (aka 'packaged_task<A (int, char)>')}}
+    VPT init{};
+    PT p{init}; // expected-error {{no matching constructor for initialization of 'PT' (aka 'packaged_task<A (int, char)>')}}
     // expected-note@future:* 1 {{candidate template ignored: disabled by 'enable_if'}}
 }